Excessive sun exposure does not cause vitamin D toxicity.However, the IOM states that people should not try to increase vitamin D production by increasing their exposure to sunlight because this will also increase their risk of skin cancer (2).of tweets–and thus lots of “noise.” A #hashtag is a way to aggregate tweets that are appended with a hashtag. When you tweet and want your message to be part of a larger conversation beyond your followers, add a relevant hashtag from the list below to the end of your message, and you’ll automatically reach anyone who is monitoring the same hashtag. If you do participate at the agreed upon time, you’ll see the tweets stream in live and participate in said conversation (via twitter) in what is nearly real-time.Picture it like a magnet that attracts all messages categorized by that topical word or phrase. But if you can’t make it, the great part about a hashtag is that it does the sorting for you.The following are expressly forbidden in postings: 1. Revealing contact or personal details of an individual without prior knowledge and consent of that particular individual. Publication of any URLs or email address on the forum is expressly forbidden.Early epidemiologic research showed that incidence and death rates for certain cancers were lower among individuals living in southern latitudes, where levels of sunlight exposure are relatively high, than among those living at northern latitudes.Because exposure to ultraviolet light from sunlight leads to the production of vitamin D, researchers hypothesized that variation in vitamin D levels might account for this association.
You can search for messages assigned to a given hashtag anytime–tomorrow, Sunday night, or during your planning period next week.
Note, this list of hashtags will be updated periodically, including reorganization, and functional linking on all hashtags.
Vitamin D is the name given to a group of fat-soluble prohormones (substances that usually have little hormonal activity by themselves but that the body can turn into hormones).
Vitamin D can also be obtained through dietary supplements.
The Institute of Medicine (IOM) of the National Academies has developed the following recommended daily intakes of vitamin D, assuming minimal sun exposure (1,2): Although the average dietary intakes of vitamin D in the United States are below guideline levels, data from the National Health and Nutrition Examination Survey revealed that more than 80 percent of Americans had adequate vitamin D levels in their blood (2).
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The safe upper intake level of vitamin D for adults and children older than 8 years of age is 100 μg per day (4000 IU per day).